XML 50 R39.htm IDEA: XBRL DOCUMENT v3.23.1
Debt and Banking Arrangements Credit Facilities and Commercial Paper (Details 2) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Credit Facility and Commercial Paper [Line Items]    
Commercial paper, outstanding $ 0 $ 350
Williams Companies Inc [Member]    
Credit Facility and Commercial Paper [Line Items]    
Commercial paper, outstanding 0  
Credit facility, capacity [1] 3,750  
Credit facility, loans outstanding [1] 0  
Commercial Paper [Member] | Williams Companies Inc [Member]    
Credit Facility and Commercial Paper [Line Items]    
Credit facility, capacity 3,500  
Letters Of Credit Under Certain Bilateral Bank Agreements [Member] | Williams Companies Inc [Member]    
Credit Facility and Commercial Paper [Line Items]    
Credit facility, letters of credit outstanding $ 18  
[1] In managing our available liquidity, we do not expect a maximum outstanding amount in excess of the capacity of our credit facility inclusive of any outstanding amounts under our commercial paper program.